"Edge of Darkness" is a 1985 British television drama serial written by Terry Hayes. The story follows Detective Inspector Ronald Craven, who investigates the murder of his daughter, uncovering a web of conspiracy involving nuclear power and government corruption. The series is known for its intense atmosphere and complex narrative. The show was critically acclaimed and won several awards, including a BAFTA for Best Drama Series. It was later adapted into a feature film in 2010, starring Mel Gibson as Craven. The original series remains a significant work in British television history, noted for its themes of morality and justice.